substances in tobacco What Chemicals Are Cigarettes? Understand the effects of smoking
Understand the effects of smoking on an unborn baby Tobacco harms the environment and the climate Tobacco smoke Biology Notes for IGCSE 2014 There are more than 7,000 chemicals in commercial tobacco smoke. (Such as: ammonia, benzene, butane, hydrogen cyanide, and toluene.) This includes hundreds of chemicals that are toxic, and about 70 that can
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